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Mary Barker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Barker across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Bertha — first a daughter (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Barker |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Crafton Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Secretary |
| Industry | Medical Doctor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 52 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Secretary |
| Township / Ward | Crafton Borough |
| Est. Birth Year | ~1912 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Barker | Daughter | — | 28 | ~1912 |
| Bertha Barker | Head | — | 46 | ~1894 |
| Edward Barker | Son | — | 25 | ~1915 |
| George Barker | Son | — | 20 | ~1920 |
| Lawrence Barker | Son | — | 21 | ~1919 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 7
Allegheny, Pennsylvania · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barker |
| Given Name | Mary |
| Relationship to Head | Grand-daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 18
Allegheny, Pennsylvania · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barker |
| Given Name | Mary |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 28
Allegheny-County, Pennsylvania · implied b. ~1912 — 5 household members
| Surname | Barker |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Crafton Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | Secretary |
| Industry | Medical Doctor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 52 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Barker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Bertha Barker (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bertha Barker
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Barker
Daughter · 1940 · age 28 · b. ~1912 · Pennsylvania
★ You are viewing this record
Sibling
George Barker
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Barker
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Barker
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03401-00323)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John W. Schroeder | 5 | Nephew | — | Pennsylvania |
| 2 | Stella S. Speer | 65 | Head | — | Pennsylvania |
| 3 | Leslie Speer | 24 | Son | Apprentice | Pennsylvania |
| 4 | Charles Bramer | 46 | Head | 300 | Pennsylvania |
| 5 | Sarah F. Bramer | 26 | Wife | — | Pennsylvania |
| 6 | Anne Taylor | 56 | Head | — | Pennsylvania |
| 7 | Betty Jane Taylor | 17 | Niece | — | Pennsylvania |
| 8 | Emil Kush | 38 | Head | Reproducer | Pennsylvania |
| 9 | Alicia Kush | 26 | Wife | — | Pennsylvania |
| 10 | Bertha G. Barker | 46 | Head | — | Pennsylvania |
| 11 | Mary Barker THIS PERSON | 28 | Daughter | Secretary | Pennsylvania |
| 12 | Edward Barker | 25 | Son | Operator | Pennsylvania |
| 13 | Lawrence Barker | 21 | Son | Apprentice | Pennsylvania |
| 14 | George L. Barker | 20 | Son | — | Pennsylvania |
| 15 | Timothy Donovan | 53 | Head | Mechanic | Pennsylvania |
| 16 | Frances Donovan | 51 | Wife | — | Pennsylvania |
| 17 | John Donovan | 18 | Son | — | Pennsylvania |
| 18 | Eleanor Donovan | 17 | Daughter | — | Pennsylvania |
| 19 | Mary Louise Donovan | 15 | Daughter | — | Pennsylvania |
| 20 | Paul Donovan | 13 | Son | — | Pennsylvania |
| 21 | Catherine Donovan | 11 | Daughter | — | Pennsylvania |
| 22 | Mary Streeter | 65 | Head | — | England |
| 23 | Henry A. Depp | 66 | Head | Supervisor | Pennsylvania |
| 24 | Lillie S. Depp | 64 | Wife | — | Pennsylvania |
| 25 | Elizabeth Schermer | 68 | Head | — | Pennsylvania |
| 26 | Anna N. Douglas | 68 | Sister | Teacher | Pennsylvania |
| 27 | William T. Dickson | 37 | Head | Installer | Pennsylvania |
| 28 | Norma Dickson | 31 | Wife | — | W. Virginia |
| 29 | William Dickson | 8 | Son | — | Ohio |
| 30 | Norma K. Dickson | 5 | Daughter | — | — |
| 31 | James N. Morten | 69 | Head | Chief Admin Assistant | Iowa |
| 32 | Elvira R. Morten | 70 | Wife | — | Kentucky |
| 33 | John H. Termeyer | 32 | Head | Operator | Pennsylvania |
| 34 | Jane Termeyer | 32 | Wife | — | Pennsylvania |
| 35 | Joyce Termeyer | 7 | Daughter | — | Pennsylvania |
| 36 | John H. Iii Termeyer | 4 | Son | — | Pennsylvania |
| 37 | Viola Magalson | 38 | Cousin | Teacher | Pennsylvania |
| 38 | Anne M. Kline | 68 | Aunt | — | Pennsylvania |
| 39 | Chas. Schanwecker | 60 | Head | Finisher | Pennsylvania |
| 40 | Lena Schanwecker | 58 | Wife | — | Pennsylvania |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)